The Chain of Chance
"On a trail leading from Naples to Rome to Paris, the ex-astronaut barely escapes numerous threats on his life. Having set himself up as a potential victim, he realizes that he may now be the target of a deadly conspiracy - and that the conspiracy is not the work of a criminal mind but a manifestation of the laws of nature. The population has numerically exceeded its critical mass; certain patterns have begun to emerge from the chaotic workings of society.